A Symbolic Computation of the Gravity Effect on the Electromagnetic Properties of Materials
In principle gravity will affect everything. Although practically negligible it is legitimate to inquire the effect of gravity on the electromagnetic properties of materials which can be expressed as the relation between (d,b) fields (electric displacement and magnetic induction) with the (e,h) fields (electric and magnetic field strength). A sample of material in a weak gravitational field is equivalent with placing the sample in an accelerating reference field (which is the statement of the equivalence principle). By using the relation between the accelerating frame with the inertial frame we can compute the electromagnetic properties with the assistance of CAS (Computer Algebra System) Reduce due to the tedious algebraic manipulations needed to accomplish the task. The linear and isotropic relation in inertial frame (free of gravity), although still linear, becomes unisotropic and mixed up between electric and magnetic fields.
Risa Suryana, Kuwat Triyana, Khairurrijal, Heru Susanto and Sutikno
A. Hermanto "A Symbolic Computation of the Gravity Effect on the Electromagnetic Properties of Materials", Advanced Materials Research, Vol. 1123, pp. 24-26, 2015